The boy, who was shot in the chest, and two other victims, both men, were all taken to John H. Stroger Jr. Hospital, but all had been stabilized by about 8 p.m., police said. One of the victims, age 48, was taken to the hospital but declined further treatment and was released.

Among those shot was a man in his 40s, shot in the right arm, and a second victim who was shot in the buttocks, said Chicago Police News Affairs Officer Veejay Zala.

Police were still trying to determine a motive.

Later tonight, a 21-year-old man was shot in the leg in the 5500 block of West Monroe Street, Zala said.